Heel-breasting machine.



J. CAVANAG'H;

HEEL BREASTlNG MACHINE.

APPLICATION FILED AUG.2'7, 1910.

Patented Jan.25,1916.

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This invention-relates to machines for use UNITED! STATES PATENT FFICE.

amiss CAVAN'AGH, or BOSTON, nassacnusn'rrs, AssIeNon r0 UNITED SHOE .MAGHINERY COMPANY, or ra'rnnson, NEW JERSEY, .A CORPORATION on NEW JERSEY.

Application filed August 27,19 10. Serial No. 579,242.

To all whom it may concern:

- Be it known thatI, JAMEs CKVANAGH, a

Boston, in the county of Sufiolkand tate of'Mas'sachusetts, have invented certain Improvements in Heel-Breastin M'achines,of

which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several res.

- in the manufacture of boots and shoes and is herein shown and described by way of ex amplification as embodied in a machine for performing the breasting operation upon shoe 'heel's. a

The heels of shoesare usu'ally composed of pieces of leather or leatherboard' built up roughly into the shape of theheeland, after attachment to the shoe, aresurmounted by a top lift whichis-formed accurately to the shape which is to be given to the rounded or conve x ly curved portion of the finished heel. The rohnded porti'on of the heel is then trimmed off flush with the top lift leaving thefront or relatively flat breast portionl ofa theheel-to be finished by a separate opera'tion known as breastin'g. This operation is usuallyiperformed by a knife arranged to reciprocate-transversely of the planeiof theshoe bottom and operated by the foot of the workman or from some other source of power.v This operation is laborious, especially when performed by foot power, and is slow since the shoe has to be jacked .and

firmly clamped in position to'prevent the heel from being displaced by the resistance.

of the heel to the cutting action: of the reciprocating knife.

One of the objects of this invention is to provide a machine for breasting shoe heels in the use of which the operator may hold the shoe in his hands and present it to the machine forthe breasting operation without thenecessity of jacking the shoe as has hith --erto beenthe usual practice.

One of the features of the invention is found in novel means with the aid of which the'shoe may be positioned, held and guided by thehand of the workman in a predetermined path while it is being presented to HEEL-BREASTING- Macrame:

' Specification of Letters Patent:

' cutting edge of t breasting knife. In the construction shown and described this means comprises a novel organization of" shoe resting mechanism arranged for movement to carry the shoe heel into and across the plane of action of the knife. 7 Y

The knife has a continuous cutting edge, and is herein shown asa belt knife which is held in extended position by suitable wheels orpulleys, preferably three, one at least of Wh1ch is power driven, the pulleys being preferably so arranged that the knife has one short horizontal run and two long runs. The knife is preferably driven at such velocity that a clean cut will be made through the .shoe heel without greater resistance being offered on the part. of theheel to the breasting out than can be readily overcome by the hand of the opera-tor.-

As a further feature of the invention the rest, which preferably engages the shank of the shoe near the heel, is arran ed for movement so that the shoe may, a ter the usual curve ofthe shank has reached tangential relation to the knife, be rolled, rocked or tipped so that all portions of the curve of the shank portion maybe made'to assume a tangential'relation to the curve of the knife for completely severing the chip from the breast portio'nof the heel. As'herein shown and described, the rest is mounted upon inclined links 'so that it may be rocked or tipped tocontinue thecutting operation of the knife about the curve of the shank, and

the angular relation of the links may be varied to accommodate the rocking movement "of the breast'to diflerent curvatures of shoe shanks.

' -As a further feature of the invention the rest is "constructed and arranged to engagethebottom of the shoe sole adjacent to the.

opposite marginal portions of the shank portion thereof and to present clearance at the convex middle portion of the shank.

By this construction, as the shoe is pressed.

against: the rest the lateral sides of the shank portion are ressed against the last and made to con orm to the curve. of the shank of the last to facilitate the separation of -the chip from the breast-along theline between the shank and breast. Furthermore a form of rest havingthis function,- which may as defined in the appended claims.

In the drawings: Figure 1 is a general perspective view of'a device embodying my invention, a portion thereof being broken away. Fig. 2 is a plan view of a ortion of the device ona reduced scale. ig. 3. is a sectional detail on the line a-a of Fig. vl.

In the drawings, 1 is a pulley on the shaft 2 which is journale'd in a suitably supported frame 3. On the opposite end of theshaft 2 is a driving pulley 4 driven from any suit- .able source of power.

5 and 6 are idler pulleys disposed in'the plane of rotation of the pulley 1. A belt' knife 7 passing over'these pulleys is held in extended position thereby inthree straight ment of the rest 30 by threading the rods 35 on thelin'ks 38 and having said rods rota- 'ta'bly j ourna-led in the ears 3+ and '36, thumb runs and has its cutting edge disposed toward the observer in-the vlew shown in Fig.

1. Extendingover and behind the belt knife is a shieldplate 8 covering part of the knife and forming a back stop. The plate where 1 it is engaged by the knife is provided with a wall having a groove 9 to prevent displacement of the back of the knife. The

front'edges of the plate 8 are curved downward at 10 to form depending lips to protect the knife and revent accidental displacement of the knife forwardly.

In front of the knife is a 'rest'plate 12 which is'guided for movement transversely of the knife by rods .14 and a tube 16, all of which are attached to the plate 12 and slide freely through holes in the frame 3 of the machine. The tube 16 is slotted at 18 and contains a spring 20 abuttingagainst the tube at the forward end and at the other end engaging a stop '22, which passes through the slot'18 and engages the frame 'ofthe machine. Themember 16 has ahead 24 on its rear end which, inthe forward position spring 20, engages the frame of the machine and prevents further movement of the rest plate in that direction. \Vhen the rest plate is moved rearwardly by pushing a shoe against the rest, the movementthereof is limited by the head 24 coming in contact with an adjusting screw 26 threaded'through a bracket 28 extending from the frame of the'machine.

Arranged upon the rest plate 12 is a rocking rest 30 which is V-sha'ped so as to engage the curved surface of the shank of a shoe in two separate lines for securely supporting the same. The rest 30 has members 32 pivoted by rivets 13 to its rear face. said members havingears pivotally connected by pins 31 and 33, links38 and rods 35 to ears 34. and 36 onthe plate 12. i The ears 36 are not, however,- directlyon the plate 12 but engaging it and threaded into the plate 12. By this meansthe distance between the lugs "34 and 36 maybe. adjusted and hence the amountjof making movement of the rest 30 regulated.- This rocking movement of the rest 30 is limited in each direction by stops "37 on thejlinks 38 coming in contact with correspondingstops 39 on the plate 12, as ismore clearly shownin Fig. 2, which represents in. plan the relative positions of the rocking rest, the stops',the shoe and the knife. ,(The outline of the shoe is in dotted lines and the knife in dashed lines). The

the breastin g out.

Provisionis made for the vertical adjust heads 46 being. provided upon the lower ends of therods. The links38are provided with brackets 41 integral therewith and depending from the same which'are also integral with the collars. 43 embracing the [threaded rods 35. ,The collars 43 are spaced so as to enable the operator to remove a predetermined amount of the heel breast which maybe rested against the top of the rest 30 :are a part of'a'member 40 which has rods .42 attached theretosliding in holes in the plate 12 and has-a threaded rod 44 rotatably during the operation of breast-ing. By ad- ,justing one of the 'screws35relatively to the 'otherthe rest may be inclined on the pivots 13' (see Fig. 3) to such an angle to the .horizontal in either direction-so as toenable shoes to be breasted rights and lefts. ofthe rest plate to which it is urged by the In connection with the rocking rest 30 a relatively stationary-rest 49" is provided for engaging the bottom of the shoe nearer the ball. This rest consists of a screw 17 threaded through a projection 48 on-the plate 12 in its middle position with neither of the limiting stops 3? in contact with the correthe straight edge of the previously molded top lift of the heel may contact with the top face of the rest 12,-that is, the shoe may be hung by its heel breast upon the said rest, the rest 30 being lowered sufficiently to act only as a shank rest. Thus used the relative vertical positions of the edge of rest 12 and the knife determine the depth of cut to be removed from the breast face of the heel. Or, if desired, the rest 30 may be adjusted into such a vertical and angular position as to cause the heel rested thereon to be breastedv at a right or left inclination. The gage 30 may also, of course, be used in a horizontal position for breasting straight heels. The bottom of the shoe in all cases rests at the ball portion on the pad 50 of the adjustable rest 49. The shoe may also be ositioned vertically by the eye so that the ife will just clear the top lift or will remove a small portion thereof, as desired. Whenproperl positioned in any of the ways suggeste the workman pushes the shoe toward the knife against the tension of the spring 20. The knife cuts through theheeluntilmovement of the rest is stopped by the head 24 coming in contact with the stop 26 which is so adjusted that at this juncture the cutting edge of the knife is tangent to the curve of the shank at its middle point but unsevered portions of the heelremainon each side of this point between the knife and the curved contour of the shank. The workman now rocks or tips the shoe on the rocking support 30, thus bringing all portions of the curved line of cut on the shank portion tangent to the the shoe thereto serves 50 securely to holdthe shoe intheV-shaped portion of the rest that "no lateral displacement can occur due to the drag-of the rapidly moving knife upon the sho e heel and, as the knife approaches the end of its cut, the rest is held by the now compressed springQO firmly against the lateral margins of the shank with substantial pressure, thereby insuring that the sole shall be brought in contact with the wood of' the last when the end of the breasting cut is reached.

To provide fondlfler'ent curvatures of the shank, the amount'of rocking motion of the rest is adjusted by the screw 44 having a thumb head 54. The angle between the plane of the tread surface of the heeland the plane of the operating portion of the 'lmife or of the breast of the breasted heel (which is the same) may be adjusted by the screw 47 carrying the rest 49.

The angle wh1ch the plane of the tread surface of the heel makes with the breast is determined, however, only in one direction mamas i by the adjusted position of the stop 49; in the other direction it is determined by the position of the shoe laterally with res ect to the stop 49 asdetermined' by the relative adjustment .of the screws 35. If the shoe is supported with the rest 49 to one side of the longitudinal median line thereof the plane of the heel breast will be correspondingly in- 'clined to the longitudinal median line of the 7 heel. It is customary to breast heels for rights and lefts with'these parts at an angle as suggested. .The operator may breast,

rights and lefts. by adjusting the inclination of the rest 30 so as to support the shoes first 'withthe rest 49 to one side of the medianlineandthen withitto the. other side.

Having described and explained a machine embodying my invention in its preferred form, which embodiment may, .however,be

variously modified and is to be regarded as for the purpose of illustration and explana tion only, I claimv as new and desire to secure by Letters' Patent of the United States 1. In a heel'breasting machind'breasting means comprising a knife and a tread'rest mounted for rocking movement about an axisperpendicular to the plane of'the knife and arranged in proximity to and movable transversely of the knife edge.

' 2-. A heel breaster comprising in combination an edge-wise moving breasting knife, a. V-shaped tread rest formed to engage thb shank on two separate lines and supports under the ends of the rest pe 'tting it to rock to bring o posite corners of the breast against the kni e alternatively.

3. A heel -breaster comprising .a belt knife, a shoe support, means for holding the knife in extended position with a portion thereof running transversely of a shoe on the support, a back guide for said knife presenting a bearing: against the rear' edge of the knife only and presenting an unobstructed space under substantially the full width of the knife, and means permitting and controlling the direction of relative movement of the support and knife. in the plane of theknife. ,4. A heel breaster comprising a belt knife, a shoe support mounted for-reciprocation in the plane of the knife and for oscillation in *a definite path, means for holding the knife extended in position with ,a portion transverse the longitudinal median line of the heel of a shoe on the support, means whereby the belt knife may be driven, and 'means preventing transverse movements of the knife.

In a heel breasting machine, the combination of breasting means and shank engaging means constructed and arranged to engage marginal portions only of the tread face of a transversely curved shank and adapted to apply substantial pressure to.

movement face ofthe fshank during the operation of the breasting mea'ns.

6; In a heel breasting machine, an endunder the lateral rock'ng movement v under the knife to cause the 7. A heel breasting machine comprising a belt knife, a shoe support mounted for movement only parallel to the plane of the knife and in a rectilinear path, means for moving the knife transversely of the longitudinalmedian line of the-shoe on the sup.

port, and means preventing transverse i said knife that'relative movement therebcmovement of the knife. 8. In aheel breaster, a support adapted to engage the shank ofa shoe, comprising dinall-median line of a shoe heel supported of; the support. 80.

' v a relatively stationary portion and a relatively rockinglportiom-said support being adapted for, bodily movement- .in a. plane substantially perpendicular to the l ongitu thereon, and a beltknife "arrangedfor travel in proximity to the rocking -=portion 9. In a heel edge, means for positioning the shoe by engagement wih the tread face '0f the sole and with the breast .fa'ceiofthe heel relatively to said'dge "so -.that relative movement between the-edge and the shoe will breast the. heel, means permittin such rela- 1 tive movement to bring the e ge tangent of said knife" an necting to the curve of the sh'ank,'and means whereby further relative movement. may be had to bring other points of the curveof the shank tangent. to theknife. I -10.In a heel bi-easter, "an endlessknife,

a; support adjacent to said knife comprising a bedplateyguiding' meansfor said plate whereby it is ada tedv tomove transversely to pass therebeneath, a V-shaped rest on said plate ceive the shank of a shoe, and links consaid rest to said plate whereby it is adapted for rockinw movement relatively thereto 11. In a heel breaster, an endless knife, a support adjacent said knife comprisin a bed. plate, guiding means for said pate whereby it is adaptedto move transversely of said knife and to pass therebeneath, a rest on said plate adapted to'snpport the shank of a shoe-at points on opposite sides of the said rest, to

medial line, and links connectin for rocking said plate whereby it is adap movement relatively, thereto.

12. In a heel breasting machine, an endless knife, a rocking rest arranged for move- I corners of the heel to be- .-breasted.-

' plane of the breasting machine a cutting adapted to regaging means .movable, relatively to the breast'ing" means and having its engaging face recessed tobear' only on the lateralpor- 'tions of the tread face of a transversely curved shank and to apply substantial pressure to said portions, during therelative movement of theshank engaging means and thebreasting means.

514'. In a heel breasting machine, an endless knife held in extended position and mounted for longitudinal movement, means for positioning'a' shoe in such relation to tween will breast the heel, means permitting such relative movement, means whereby relative-movement between the knife and the shoe may be had to bring the knife tangent to all points on the line of juncture of Shank and heel breast and means for preliminarily adjusting the angular relation between the tread surface of the heel and the plane of the operating portion of the knife. 1

15. In a breasti ng machine, a belt knife,

rotary means over which the knife passes,

means to support a shoe and permit moveknife to breast the heel, and means located below said support and over said rotary means to prevent the severed portions of the heel from falling between the belt and the back stop for the knife, a work support movable at right angles to the operating run of .the knife, front and back stops for the support, and means normally holding the support against the front stop.-

17. In a heel breastin'g knife, three pulleys in triangular relation sup orti the knife, a back guide for the kni e, a p ate mounted for movement transversely of the knife and perpendicular thereto, stops limiting thebackwardiand' forward movement of said plate, resilient means forcing the plate mounting against the forward sto a rest member, and sai member to said late.

links connecting ment of the same in proper relation to the p machine, a belt 18. In a'niachine o the class described, a

band or belt knife, three pulleys arranged for supporting the knife with one short horizontal and two long runs, shoe positioning means disposed adjacent the short run of the knife and having a normal work receiving position in aplane below the knife and remote from the knife and movable in a plane parallel to the knife to guide the shoe while iacaiae :v a a it isbeiiigbreaSted, and] means for guiding the'positioningmeans parallel to the plane offthe knife for the breasting operation and a back to work receiving position after the breasting operation.

19. A heel'bre'asting machine, having in combination, a breasting knife 'and'a shank rest which is mounted for right line movement with. the shoe and relatively to the knife in a'*plane under the knife-to cause the main body of the heel to be breasted, and for lateral rocking movements under theknife to cause the'corners' of the heelto be breasted.v

;. 20. A heel breasting machine, having in combination, anendless knife and a rocking shank rest guided for right line movement 7 with theshoe and relatively to the knife in a direction transversely of the operating porw vting ment of the knife, supporting means mounttion ofthe'knife and arranged to tip later-f allyfor severing portions of the heel remaining uncut during said right line movement;

21. Inaheel breasting machine, a longitudinally movable knifehaving an endless cutedge, means preventing lateral moveed for movement transversely of the knife and parallel to the plane thereof, means for arresting said movement to limit the breasting cut and shoe resting means mounted upon said supporting means for rocking movement relatively thereto.

22. In a heel breasting machine, a bandknife 7 and a shield 8 arranged to cover the knife and having clearance for presentation of the work to the knife and having at each side of said clearance the depending lips 10 to'protect the edge of the knife.

23.; In a heel breastingmachine, a band knife 7 and a shield 8 arranged to cover'the knife and having clearance for presentation :of the work to the knife and at the back of -'over the knife and presentin for the cutting portion of t e knife and I lsaid clearance 'a wall for resisting pressure against the knife.

24. In a heel breasting machine ja'band knife and a shield projecting forwardly a back stop depending lips to'protect the front edge of the knife at each side of the cutting portion: 25. A heel breasting machine having, in

combination, a breasting knife and a work 1 rest against which the shoe may be pressed by movement in a' direction transverse to the shoe for, contact at a plurality pf points on the bottom portion of the sole only, said rest being mounted for movement with the work, toward and from the knife and for movement while'the Work is in.engagement' with the knife for continuing the operation of the knife about the curve of the shank.

, J I 26. In a heel breasting machine'a breast'-.

.ing knife, a rocking rest to engage the; shank of the shoe' and movable with the shoe for the breasting cut and tipping to cause the corners lofthe heel to be breasted, and 'a stopcoiiperating with-said rocking rest to limit the tipping movement.

27. In a heel breasting machine a breast- 1ng knife, means-to engage the shank of the shoe and movable with the shoe for the breastlng cut, and 'a stop cooperating with said shank engag ng means tolimit the depth of the breasting-cut, said shank engag ng means having provision for relative movement of the shoe and the knife to com- 29. Inaheel breasting machine a breast-- ing knife having a straight cutting edge and shoe resting means against which the shoe bottom is pressed and between which and the knife thereis relativefmovementtoefl'ect the breasting operation, said rest being mounted to permit a rolling movement of the shoe against the knife for continuing thebreasting out about thecurve of the shank.

30. In .a heel breasting machine, a belt knife having an upper, horizontal run, and

shoe guiding means, said vparts being arranged to occasion the breasting chips .to fall from below said run of the-knife, and a depending: shield extendin obliquely downwardly in position. to gui e the chips from the moving parts'of the machine.

' 31L A heel breasting machine having, in

combination, a constantly running knife,- and a rocking shoe rest automatically moved into a shoe receiving position remote from the. knife, arranged to guide the shoe into and progressively across the path of said knife, ,to [be moved for that purpose by force transmitted to. it through the shoe from he operator and to be rocked to complete the severance. of the chip at the sides of the shank.

32. In a heel breasting machine the combinationwith a breasting knife, of a shoe rest guided relativel to the knife .for engaging'throughoutt e breasting operation, I with, the tread. face ofthe sole adjacent to the heelbreast of the shoe, and means for relatively actuating the rest and theknife transversely of the shoe in a direction parallel with the plane of the breasting o ration. v --33.' In a eel breasting machine the comsole during the bination with a breasting knife, of a shoe rest guided relative y to the knife for ento the gaging throughout the breastin operation, with the tread face of the so e adjacent to. the heel breast of the shoe, said rest and the cutting edge of the knife being mounted for operative movement in directions sub- 'stantially perpendicular to each other.

34. In a heel breasting machine, the combination with a breasting knife of shoe restmg means comprising a* member for engaging the shank on opposite sidesthereof on y near the breast to force the shank portion of the sole against the last, and a member for engaging the bottom of the forepart over a limited area. Y

35. In a heel breasting machine the combination with a' breasting knife, of shoe resting means comprising a member for engaging the shank upon opposite sides near the breast, and a sole forepart bottom enga ing member, said members being; relative y adjustable to vary the vertical inclination which shall be given to the breast face of the shoe heel by the breasting operation.

' 36. A heel breasting combination, a breastmg knifehand means for engaging attached cc to position the-heel relatively plane of action of the knife and to determine the amount to be cut off from said rough face by the breasting operation, said means being constructed and arranged for adjustment angularly to vary the lateral angle of the breast face. v

37. In a machine for breasting heels after they have been attached to shoes,- the combination with a breasting knife, of means to en age the breast face ofithe attached roug heel and position the heel relatively to the plane of' action of the knife for determiningthe amount to be cut off from the heel breast by the knife, and

means 46 to ad'ust one end of said eng'aging means relativelv to the other and to the knife to vary the angle with the plane of the knife at which the breast shallbe cut.

38. In a machine for breasting heels after I they have been-attached to shoes, "the coming, in. combination, a .breastin bination' with a breaSting knife of means to engage the shoe bottom at the forepart at separated longitudinal lines on the shank' 7 shoe rest 30 between which an the knife there is provision for relative movement to the heel, dive ging links 38, and a machine having, in j i the rough breast face of an.

op osite edges of the shank for depression of its ends alternately in presenting the heel: for, severance of the stock at opposite lateral,e nds ofthe breast.

41. A machine'oflthe class described having,-in- 'combinati'on',a breasting knife 7, .a shoe rest there is provision for relative movement to breast the he'e1,-"divergi ng links 38, a base 12 to which the. links connect the rest, and the 30between which and the knife;

base 12 to which thelink s connect the rest screw 44for adjusting the inclination of the 7 links v r 42-. In a-machine of the class described the combination with means for working on the shoe, of Ineansjfor resting the shoe therefor comprising. a su port mounted on diverging links which are ocated at the opposite ends thereof and-permit depression of either end of the su(pport with simultaneous rise of the other en 43. In a machine 'ofgthe class described the combination with means for working onthe shoe, of the rocking rest 30, the relatively inclined links 38, and the base 12 to which the links ivotally connect, the rest substantially as escribe 44. In a machine of the class described the combination with means forworking on the shoe of means for resting the shoe therefor comprising a support mounted on divergingv links which are located at'the opposite ends of the su port with simultaneous rise ofthe other en and means for adjustably limiting the described movement of the support.

'th6180f and permit depression of either end I int 45. In a heel breasting machine the com v 'bination with a breasting knife of the gage 12'to position the heel re atively to the plane of the knife, and the shank gage'30 carried 7 by the gage 12 to limit the depth of the cut. efi ln a heel breasti'ng mac ne,'the. combination of a knifeoperating in a horizontal upon which the heel maybe h by the heel breast to position it relative y to the knife for'the breasting operation.

47. In a heel breastmg machine, the combination of a knife operating .in a horizontal plane and a locating and supporting rest upon which the heel ma be hung by the heel breast and with whic the shoe maybe rocked relatively to the knife to sever the side portions of the chi 'alongthe intersec tion of the breast and s ank.

48. In a heel breasting machine, the combination of a knife operating inn horizontal plane and a relatively, stationary locating and supporting rest upon which the heel maybe hung by the heel-breast to position the shoe longitudinally with relation to the knife, and arelatively rockin shank rest to permit movement of the shoe or severing the corner portions of. the chip cut from the heel b the br'easting operation.

in a heel breasting machine the com- .plane and a locating and supporting rest bination with a band knife and means for actuating it, of means to guide a shoe in a rectilinear path relatively to the knife for the breasting operation, includin V-shaped means to'restrain the shoe from iateral glisplacement by the pull ofthe knife during the cutting operation.

50. In a heel breasting machine the combination with a band knife and meansfor actuating it of means to guide a shoe for movement in a straight linerelatively to the knife for the breasting operation, including means engaging the shank of the -shoe to restrain lateral movement thereof by the band knife. 7 v '15 In testimony-whereof I have signed my name tcthis specification in the presence of two subscribingwitn'esses'.

JAMES CAYANAGH. Witnesses: ARTHUR L.- RUssELL, MARTHA W. COUPE. 

